Update README.md to clarify publishing process and add software version details

Author: p0n1

README.md

@@ -6,16 +6,22 @@
 
 - Write: in `content/post` folder
 - Preview: `hugo server -D`
-- Publish: `./publish_to_ghpages.sh` and `git push --all`
+- ~~Publish: `./publish_to_ghpages.sh` and `git push --all`~~
+- Git commit and push to the `master` branch, GitHub Actions will build and deploy the site automatically.
 
 ## More
 
 - Hugo Static Site Generator hugo v0.136.5+extended
 - https://gohugo.io/getting-started/usage/
 - Cloudflare Rocket Loader should be disabled for this site or the MathJax will not work.
 
-## Hugo Version
+## Software Versions
 
+The GitHub Actions [workflow](https://github.com/sec-bit/blog/blob/master/.github/workflows/hugo.yml#L34-L44) uses the following software versions:
+
+```
+hugo v0.147.9
+pandoc 3.7.0.2
 ```
-hugo v0.147.9+extended+withdeploy darwin/arm64 BuildDate=2025-06-23T08:22:20Z VendorInfo=brew
-```
+
+Use the same software versions to build and preview the site locally.